The Patch Notes for the upcoming version 1.07 patch for Diablo III have a few more new entries showing changes implemented yesterday on the Public Test Realm for Blizzard's upcoming action/RPG. This overhauls how damage is added to items by socketing any ruby, not just the higher quality gems. This is explained in this separate post discussing a bug in how "black" damage is calculated that isn't being addressed, and how this changes the impact of socketing rubies, which is being changed. They are also reducing the cost of repairing items with Marquise gems and have improved the visual effect of the Reflects Damage affix.